Locomotive-engine.



'No. 742,653. PATENTED oc'r. 27, 1903.

J. HOLDEN & P. v.. RUSSELL;

LOGOMOTIVE ENGINE V APPLICATION FILED FEB. 38,1903. 30 MODEL, 2 SHEETS-SHEET l.

No. 742,653. I v PATENTED OUT. 27

vJ. HOLDEN & P. v. RUSSELL.

LOGOMOTIVE ENGINE. ABPLIOATION FILED FEB. 26, 1903.

H0 MODEL.

2 SHEETS-SHEET 2.

Patented October 27; 1903.

PATENT FFICE.

JAMES HOLDEN, OF VVANSTEAD, AND FREDERICK VERNON RUSSELL, OF

STRATFORD,

ENGLAND.

LOCOMOTlVE-ENGINE.

SPECIFICATION forming part of Letters P Application filed February 26. 1908 Serial No. 145,246.

1'0 all whom it may concern.-

Be it known that we, JAMES HOLDEN, residing at Wanstead, and FREDERICK VERNON RUSSELL, residing at Stratford, in the county of Essex, England, subjects of the King of Great Britain and Ireland, have invented Improvements in Locomotive-Engines, of which the following is a specification.

This invention has reference to the driving-gear of locomotive-engines wherein an axle or shaft or more than oneis or are located between an inside cylinder or cylinders and the crank-shaft driven by the piston or pis' tons of such cylinder or cylinders.

Sometimes for the purpose of enabling the connecting-rods to clear the intervening axle or axles of alocornotive-engine the cylinders have been placed outside the wheels. Sometimes a cylinder or cylinders has or have been inclined so as to locate the connecting rod or rods directly above the intervening axle or axles. With such an arrangement not only is there liability to oscillation, but the greater the inclination the more variation of weight will there be on the supporting-wheels, so that there is liable to occur at some periods excessive pressure calculated to damage the rails and at other periods such reduction of pressure between the wheels and rails as in some cases to renderthe adhesion insufficient to prevent slip.

The present invention has for its object to enable a locomotive-engine having one or more inside cylinders to maintain a more even pressure than heretofore usual on the supporting base or wheels of the engine, so as to mitigate the tendency of the drivingwheels to slip, as the driving-wheels of locomotive-engines are liable to do, and also to obviate or mitigate oscillation and pitchingt. e., swinging about longitudinal or transverse axes-of a locomotive-engine.

For this purpose the invention consists in various combinations and arrangements of parts, all as hereinafter more fully described, and pointed out in the claims.

In the accompanying illustrative drawings, Figure l is a side elevation, partly in longitudinal section, and Fig. 2 a plan, showing part of one arrangement of locomotive-engine constructed with two inside cylinders.

. in or approximately Fig. 3 shows in plan a modified form of doubly bent or cranked axle. Figs. 4 and 5 are similar views to Figs. 1 and 2, respectively, showing another arrangement of locomotiveengine according to this invention wherein there is one inside cylinder and two outside cylinders.

According to this invention the inside cylinder or cylinders a is or are arranged horizontally'or as nearly so as may be conveniently practicable, and the connecting-rod b or each connecting-rod is constructed with an opening 0 or openings such as will enable such rod to clear the axle d or axles located in the line of itsmotion. In some cases the intervening axle d, or each of them, if there be more than one, is bent after the manner of a crank, and the eccentric portion a thereof is located in the opening 0 provided for it in the connecting-rod in such wise as to accommodate such portion of the axle to different angular positions of the rod, thus enabling the said opening in the rod to be made smaller than would otherwise be needful. Where more than one connecting-rod has to be accommodated, the bent formation of the intervening axle or axles is correspondingly modified.

In Figs. 1 and 2, which show a locomotiveengine constructed with six wheels f coupled, the driving-axle g is located between the leading and trailing axles d and h, respectively. In front of the leading axle d are located two horizontal inside cylinders a, whose axes lie in a horizontal plane containing the axes of the axles d, g, and h. The leading axle d is formed-with two shallow cranks or bends k and m, arranged at an angle to one another corresponding to that between the driving-cranks n of the engine, and each connecting-rod b is constructed with an opening c,-so as to accommodate the corresponding eccentric part It or m of the leading axle d and is arranged to operate the corresponding crank n of the driving-axle g. The opening 0 is in the form of an elongated slot, the outer end block 0, that is fixed to the forked end of the said connecting-rod and is jointed at p to the corresponding piston-rod q;

Fig. 3 shows a modified form of doubly bent of which is closed by a or cranked axle d, according to which the cranked or bent portions 70 m merge one into the other.

In Figs. 4 and 5, which show a locomotiveengine having eight Wheels coupled, there are three cylindersviz., one inside cylinder a and two outside cylinders r and s-placed horizontally. The second axle g is the driving-axle, and the leading axle d is formed with a single bend it to accommodate the connecting-rod of the inside cylinder (1-; The piston-rods q of the outside cylinders r and s are connected to outside crank-pins t on the driving-axle g by outside coupling-rods of ordinary form.

What We claim is- 1. In a locomotive-engine, the combination of a driving-shaft, an inside cylinder, a transverse axle located between said driving-shaft and cylinder, and a connecting-rod arranged between the piston-rod of said cylinder and said driving-shaft and constructed with an opening through which said transverse axle extends.

2. In a locomotive-engine, the combination with a cranked driving-shaft, an inside cylinder, and a transverse axle located between said drivingshaft and cylinder and formed With a bend, and a slotted connecting-rod be-- tween the piston-rod of said cylinder and the cranked portion of, said driving-shaft, and surrounding the bent portion of said intermediate axle.

3. In a locomotive-engine, the combination of an inside cylinder, a leading axle, and a driving-axle, the axes of said cylinder and axles being in approximately the same horizontal plane, and a slotted connecting-rod between the piston-rod of said cylinder and the cranked portion of said driving-axle, the slotted portion of said connecting-rod embracing said leading axle.

4. In a locomotive-engine, the combination of an inside cylinder, a leading axle, and a cranked driving-axle, the axes of said cylinders and axles being approximately in the same horizontal plane, and said transverse axle being formed with a bend arranged at approximately the same angle as the crank portion of said driving-shaft, and a slotted connecting-rod arranged between the pistonrod of said cylinder and the cranked portion of said driving-axle, and embracing the bent portion of said leading axle.

5. In a locomotive-engine, the combination of a driving-shaft having an intermediate crank-pin and two outside crank-pins, three horizontal or approximately horizontal cylinders namely an inside cylinder and two outside cylinders, conpling-rods connecting the piston-rods of said cylinders to the corresponding crank-pins of the driving-shaft, a

leading axlelocated between said driving- -shaft and cylinders and formed with a bend arranged parallel to the intermediate crank, the connecting-rod between the piston-rod of said inside cylinder and intermediate crankpin being slotted and extending around the bent portion of said leading axle.

Signed at 75 and 77 Gornhill, in the city of London, England, this 30th day of January, 1903.

JAMES HOLDEN. FREDERICK VERNON RUSSELL. 

